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Enhanced deep sleep example

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Manuel Bl
2021-09-29 19:40:57 +02:00
parent 31b00f05a8
commit 9fd24c65ec
3 changed files with 19 additions and 5 deletions
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11
examples/deep_sleep/main/main.cpp
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@ -15,6 +15,8 @@
#include "esp_sleep.h"
#include "freertos/FreeRTOS.h"
#include "nvs_flash.h"
#include <stdio.h>
#include <string.h>
#include "TheThingsNetwork.h"
@ -47,7 +49,9 @@ const char *appKey = "????????????????????????????????";
static TheThingsNetwork ttn;
const unsigned TX_INTERVAL = 60;
static uint8_t msgData[] = "Hello, world";
// This counter value is retained (in RTC memory) during deep sleep
RTC_DATA_ATTR int counter_in_rtc_mem;
void messageReceived(const uint8_t *message, size_t length, ttn_port_t port)
{
@ -111,7 +115,10 @@ extern "C" void app_main(void)
}
printf("Sending message...\n");
TTNResponseCode res = ttn.transmitMessage(msgData, sizeof(msgData) - 1);
counter_in_rtc_mem++;
char message[20];
sprintf(message, "Hello %d", counter_in_rtc_mem);
TTNResponseCode res = ttn.transmitMessage((uint8_t *)message, strlen(message));
printf(res == kTTNSuccessfulTransmission ? "Message sent.\n" : "Transmission failed.\n");
// Wait until TTN communication is idle and save state